arch/x86/include/uapi/asm/sigcontext32.h

   1 #ifndef _ASM_X86_SIGCONTEXT32_H
   2 #define _ASM_X86_SIGCONTEXT32_H
   3
   4 /* Signal context definitions for compat 32-bit programs: */
   5
   6 #include <asm/sigcontext.h>
   7
   8 /* FXSAVE frame: FSAVE frame with extensions */
   9 struct _fpstate_ia32 {
  10         /* Regular FPU environment: */
  11         __u32                           cw;
  12         __u32                           sw;
  13         __u32                           tag;            /* Not compatible with the 64-bit frame */
  14         __u32                           ipoff;
  15         __u32                           cssel;
  16         __u32                           dataoff;
  17         __u32                           datasel;
  18         struct _fpreg                   _st[8];
  19         __u16                           status;
  20         __u16                           magic;          /* 0xffff: regular FPU data only */
  21                                                         /* 0x0000: FXSR data */
  22
  23         /* Extended FXSR FPU environment: */
  24         __u32                           _fxsr_env[6];
  25         __u32                           mxcsr;
  26         __u32                           reserved;
  27         struct _fpxreg                  _fxsr_st[8];
  28         struct _xmmreg                  _xmm[8];        /* The first  8 XMM registers */
  29         __u32                           padding[44];    /* The second 8 XMM registers plus padding */
  30         union {
  31                 __u32                   padding2[12];
  32                 /* Might encode xstate extensions, see asm/sigcontext.h: */
  33                 struct _fpx_sw_bytes    sw_reserved;
  34         };
  35 };
  36
  37 /* 32-bit compat sigcontext: */
  38 struct sigcontext_ia32 {
  39        __u16                            gs, __gsh;
  40        __u16                            fs, __fsh;
  41        __u16                            es, __esh;
  42        __u16                            ds, __dsh;
  43        __u32                            di;
  44        __u32                            si;
  45        __u32                            bp;
  46        __u32                            sp;
  47        __u32                            bx;
  48        __u32                            dx;
  49        __u32                            cx;
  50        __u32                            ax;
  51        __u32                            trapno;
  52        __u32                            err;
  53        __u32                            ip;
  54        __u16                            cs, __csh;
  55        __u32                            flags;
  56        __u32                            sp_at_signal;
  57        __u16                            ss, __ssh;
  58        __u32                            fpstate;        /* Pointer to 'struct _fpstate_ia32' */
  59        __u32                            oldmask;
  60        __u32                            cr2;
  61 };
  62
  63 #endif /* _ASM_X86_SIGCONTEXT32_H */